JONES, J. B. Laboratory guide for conducting soil test and plant analysis#J. Benton Jones. CRC Press.
Chicago-viite (17. p.)JONES, J. Benton. Laboratory Guide for Conducting Soil Test and Plant Analysis#J. Benton Jones. CRC Press.
MLA-viite (8. p.)JONES, J. Benton. Laboratory Guide for Conducting Soil Test and Plant Analysis#J. Benton Jones. CRC Press.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.